Electrical safe-protection system



No. 626,684. y Patented lune la, |899.

H. F. FREED.` ELEcTmcAL SAFE Pnozcnon SYSTEM.

' (Applicgtion led Dec. 13, 189B.)

(No Model.)

IKS E UNITED STATES PATENT 'OFFICE I-IENRY E. FREED, OE II'ARRISBURG, PENNSYLVANIA, ASSIGNOR OE SEVEN- EIGI-ITI-IS To ISAAC FREED, or SAME PLACE, AND DAVID KEY CLINK AND GEORGE JUDD REED, OE CHICAGO, ILLINOIS.

ELECTRICAL SAFE-P SPECIFICATION forming part of Letters Patent No. 626,684, dated June 13, 1899.

Application filed December 13, 1898. Serial No. 699,163. (No model.)

.To all whom if may concern:

Beit known that I, HENRY F. FREED, a citizen of the United States, residing at Harrisburg, in the county of Dauphin and State of Pennsylvania, have invented certain new and useful Improvements in Electrical Safe-Protection Systems; and I do declare the follovvin g to be a full, clear, and exact description of the invention, suoli as Will enable others skilled in the art towhich it appertains to make and use the same.

My invention relates to an improved electromechanical protection system for providing additional security for safes, vaults, and similarl receptacles for the storing of valuables; and the object is to provide a certain infallible means forgiving Warning upon an improper attempt being made to gain access to the protected property. y

To these ends the invention consists in the construction, combination, and arrangement of the several elements comprising the auxiliary protection system independent of the security afforded by the receptacle itself, as will be hereinafter more fully described, and particularly pointed out in the appended claims.

In the accompanying drawings the same reference characters indicate the same parts of the invention.

Figure' 1 is a diagrammatic plan of my improved auxiliary safe-protection system. Fig. 2 is a longitudinal section of the auxiliary bolt-lock. Fig. 3 is a plan view of the boltoperating mechanism. l

1 denotes the safe, 2 its hinged door, and 3 the alarm-box, which is also provided with a door 4 and which may be located at any convenient point within or outside of the building in which the safe is located and of course where it will be under the supervision of a trusted employee.

5 denotes the combination-lock of the safe, which is controlled 4in the usual manner by the'knob-dial, (not Showm) and 6 denotes the lock-bolt, which is arranged to be projected into and Withdrawn from the-path of the tumbler 7, fixed on the shaft 8 and provided with a vertical arm 9, entering a notch 10 in the bar 12, connected to the bolt-bar 13, to which the lock-bolts 14 14 are fixed. Of course it will be understood that in order to Withdraw the bolts 14 the combination lock-bolt 6 must first be retracted in the usual manner, so that the tumbler may be moved by its shaft 8 in finger 15, which is adapted to make connection with a fixed contact-plate 1G When the bolts 14 are Withdrawn, and a similar insulated contact-finger 17 is carried by the boltbar 13 and which Will also make connection lwith the plate 16 when the bolts 14 are Withdrawn, as in the first instance. The fingers 15 and 17 are connected by a wire 1S in electrical communication With a conductor 19,and the plate 16 is also provided with a conductor 20, for a purpose to be presently set forth. The tumbler-.shaft 3 forms a continuation of a cylindrical lock-barrel 21, journaled in the handle or knob 22, fixed in the safe-door and controlled by a removable key 23, the operation being such that in a legitimate Way the lock-bolt 6 must first be Withdrawn through the medium of the combination knob-dial before the key 23 can be used to turn the lockbarrel 21, shaft S, and tumbler 7 to Withdraw person and the combination by another it Will require the presence of both to open the safe. The conductor 36 leads to an insulated contact-finger 24, carried by a lock-barrel 25, mounted in the safe-door and controlled by a removable key 26, and 27 28 denote insulated contact-plates fixed to the inside of the safe-door and in the path of the contact-iinger 24, which normally rests on the plate 27 when the safe-door is locked, and from the plate 27 a conductor 29 leads to a contactspring 30, fixed in the path of a spring-actuated plunger 31, which is held out of Contact with the finger 30 When the door is closed, but which is released by the door so as to make Contact with said finger When the safedoor it opened. From the plunger 31 a conductor 32 extends to an inverted relay 33, mounted in the alarm-box 3,v and from said relay a the bolts 14, and if the keybe carried by one,

the direction of the arrow. The end of this shaft 8 carries an insulated electrical contactconductor 34 extends to the battery 35, from which the conductor 36 extends to the contact-finger 24. From the armature-lever 37 of the relay 33 a conductor 38 extends to a second inverted relay 39, and from said relay a conductor 40 extends to a spring-actuated plunger 41, fixed in the path of the safe-door v2 and in electrical communication with a contact-finger 42, from which a conductor 43 extends to the battery 44, and branch wires 45 and 46 extend from the plunger 41 and conductor 43 to the contact-finger 24 and plate 28, respectively. A conductor 47 extends from the battary 44 to an insulated contact-finger 48, fixed in the back of the box, and a conductor 49 extends from a similar opposed contact-fin ger 50 to the back contact-screw 51 of the armature-lever 37. 52 denotes an alarmgong rigidly fixed on the post 53, mounted in the box-door 4 and formed with au integral extension 54, which when said door is closed extends between the contact-fingers 48 50 to close the circuit between them.v The armature-lever 55 of the relay 39 is provided with a conductor 56, which extends to one pole of a battery 57, and from the other pole a conductor 58 extends to the vibrating bell-magnet 59, the armature of which coacts with the gong 52 to produce the alarm. -A conductor 60 extends from the magnet 59 to the back contact-screw 6l of the armature-lever 55, and a branch conductor 62 extends from the conductor 56 .to the plunger 31, the current extending through the contact spring-finger 30 to the contact-plate 27 and finger 24, and thence over the conductor 63 to the alarmcircuit conductor 60. The safe-door is thus protected by the closed circuit 40 '47 and the two open circuits 32 36 and 62 63, and if the closed circuit 40 47-be interrupted the magnet 39 is demagnetized and its armature, being released, falls by gravity and, coming in contact with the screw 6l, closes the local alarmcircuit 56 60, which sounds an alarm on the gong 52, and if the open circuit 32 36 be closed it energizes the magnet 33, which raises its armature 37, and therebyopeus the normallyclosed circuit 40 47 at the contact-screw 51, thereby demagnetizing the v magnet 39 and sounding the alarm, as in the first instance, and if the circuit 62 63 be closed it closes the local alarm-circuit 56 60 an d sounds the alarm.

The gong is permanently fixed to the gongpost, and should the gong and post be removed the extension 54 would break the circuit between the contact-pieces 48 50T The various conductors extending between the safe and the alarm-box are twisted to form a cable, as shown, and as allof said conductors are identical in appearance it is practically i-mpossible to tamper with them without causing an alarm to be sounded.

When it is desired to open the safe legitimately, the key 26 is inserted in the switchlock 25 and the contact-finger 24 moved from the contact-plate 27 to the contact-plate 28, which cuts out the contact-plunger 41 and makes a second opening or break in the circuit of which the plunger 31 forms a part, and at the same time the finger 15 closes on the contact-point 16, thus closing the circuit 19 20, and thereby permitsY the safe-door to be opened without changing the status of either of the circuits or sounding an alarm.

It will of course be understood that various changes in the form, proportion, and the minor details of construction may be made Without departing from the spirit or sacricing an`y of the advantages of this invention.

Having thus described the invention, what l claim, and desire to secure by Letters Patent, is-

1. The combination with the xed safedoor knob, a lock mounted in said knob, and a tumbler-operating shaft carried by said lock-barrel, of an electrical circuit having one of its terminals connected to an insulated contact-finger carried by said shaft, and the other terminal connected to a contact-plate fixed in the safe in the path of said contactfinger, substantially as and for the purpose set forth.

2. In an electrical safe-protection system, the combination with the safe, its hinged door and locking-bolts, of an electrical circuit having its terminals extending within the safe and in the path of said door an electrical alarm mechanism forming a part of said circuit, a knob-spindle fixed to the door, a key-operated lock contained within said knob-spindle and operatively connected to said locking-bolts and adapted to interrupt said circuit.

The combination with the sate, of the plunger 4l mounted in the path of the safecloor, the contact-finger 42, of a normallyclosed relay-circuit comprising the magnet 39, battery 44, conductors 4,0 43 and 47, the lock 25,theinsulated finger24 carried thereby, the contact-plate 27 fixed in the path of said finger, the branch conductors 45 and 46 connecting said plunger and linger and conductor 43 andplate 27, respectively, and a local alarm-circuit adapted to be energized upon the interruption of the normally-closed relaycircuit, substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

HENRY F. FREED.

Witnesses:

HAMPTON SMITH, ALBERT J. FAGER.

TCO

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